[pve-devel] [PATCH qemu v5 01/32] PVE backup: add target ID in backup state

[Fiona Ebner]

In preparation for allowing multiple backup providers and potentially
multiple targets for a given provider. Each backup target can then
have its own dirty bitmap and there can be additional checks that the
current backup state is actually associated to the expected target.

Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---
 pve-backup.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pve-backup.c b/pve-backup.c
index 32352fb5ec..b76d1bbe22 100644
--- a/pve-backup.c
+++ b/pve-backup.c
@@ -70,6 +70,7 @@ static struct PVEBackupState {
     JobTxn *txn;
     CoMutex backup_mutex;
     CoMutex dump_callback_mutex;
+    char *target_id;
 } backup_state;
 
 static void pvebackup_init(void)
@@ -848,7 +849,7 @@ UuidInfo coroutine_fn *qmp_backup(
 
     if (backup_state.di_list) {
         error_set(errp, ERROR_CLASS_GENERIC_ERROR,
-                  "previous backup not finished");
+                  "previous backup for target '%s' not finished", backup_state.target_id);
         qemu_co_mutex_unlock(&backup_state.backup_mutex);
         return NULL;
     }
@@ -1098,6 +1099,11 @@ UuidInfo coroutine_fn *qmp_backup(
     backup_state.vmaw = vmaw;
     backup_state.pbs = pbs;
 
+    if (backup_state.target_id) {
+        g_free(backup_state.target_id);
+    }
+    backup_state.target_id = g_strdup("Proxmox");
+
     backup_state.di_list = di_list;
 
     uuid_info = g_malloc0(sizeof(*uuid_info));
-- 
2.39.5